Lock knife for pattern mechanism



A. D. GA RGOLINSKI LOCK KNIFE FOR PATTERNMECHANISM Sept. 15. 1925.

Filed Jan. 2, 192

mvsn'g'o- ANTHONY nsmoouusm Patented Sept. 15, 1925.

UNITEDLTSVTATES PATEN OFFICE.

ANTHONY n. GARGOLINSKI, or woncnsTnn, MASSACHUSETTS, Assrelvon Tocnoivrr- TON & KNOWLES LOOM WORKS, OF 7 TION OF MASSACHUSETTS.

WORCESTER, MASSACHUSETTS, A coaroRA- Loci: KNIFE iron iPAT TERliTi rrEcnAn IsM.

; Application filed January 2, 192 4. Serial No. ceases.

nism for looms and more particularly'to an improved lock knife for Knowles head. V p

This type of pattern mechanism comprises the "well known a pair of rotating cylinder gears between which are mounted aset of vlbrator gears which are raised and lowered by means of pattern chain actuated levers tobe in mesh either with the upper or lower cylinder gear. Each harness jack or lever is provided with a connector one end of which is pivotally connected to one of the'vibrator gears and as the latter rotates the jack is movedeither in or out to lower or raise the harnesses connected thereto. In order to keep the vibrator gear in operative relation With the cylinder gear it is customary to provide a so-called lock knife which is moved into lockingrelationship with the vibrator gear carrying lever to lock the latter either in upper or lower position at the time the vibrator gear is being driven;

As heretofore constructed these lock knives have been made in such a way as to render impossible certain adjustments which are desirable and it is one object of my invention to provide an improved lock knife which may be adjusted vertically.

A further object of my invention is to provide a lock knife formed of parts certain of which may be used for mechanisms of different widths.

With these and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

In the accompanying drawings, wherein I have shown a convenient form of my invention,

Fig. 1 is a front elevation of a Knowles head type of pattern mechanism having my invention applied thereto,

Fig. 2 is n a e front eleva i n 91 the knife and supporting levers, certain parts being shown in section, p

F ig. 3 is a fragmentary top planview of the lock knife, and

Fig.4 is an' end elevation of the 100k knife as viewed from the center'of the loom to which it is'attached. 1 1 V i Referringto 'the drawings, it will-be seen that the 100m side 10 and arch 11 have attached thereto head frame 12and pattern chain run 13. Cylinder gears 14 and 15 are -mounted in the head frame and are rotated in opposite directions by mechanism not shown. Harness levers 16are pivoted to the arch as at 17 and are provided with con: nectors 18 pivotally connected thereto as at 19. Vibrator levers 20 are pivoted'on'pin 21 carried by the headframe and have rotatably mounted on the inner endsthereof vibrator gears 22 which have'pivotal connections with theconnectors' 18" as at 23. f l l Theshaft 24 of the lowercy'linder gear'15 is extended and has secured thereto a cam 25' which operates the cam lever 26 to which i'ssecured a lock knife shaft 27; The inner end of each vibrator lever20 is formed with a projection 28 to cooperate with the lock knife for the purpose of holding the levers positively either in raised or lowered position. The matter thus far described is of v ing screw 34 for a purpose to be described.

Extending between the arms 30is a lock knife blade 35 having a locking portion 36 and a securing portion. 37 substantially at right angles thereto. Bolts 38 passthrough the slots 32 into securing portion 37 of the lock knife blade and hold the latter securely in place on the arms 30. By means of screws 34 I am enabled to get a close adjustment of the locking portion 36 with respect to the projections 28 formed on vibrator levers 20. It Will be seen that screws 34 serve positively to limit upward movement o the 1991s lsiife wh n Y r t' gear 22 is being rotated by cylinder gear 15,

and that arms .30 can be moved along lock knife shaft 2''? :to permit any adjustment found necessary when securing the lock knife 35 to said arms 30.

' From the foregoingit. is apparent that I have provided a look knife constructed in such a way as topermit adjustmentof the locking blade with respect to the vibrator levers and that the arms onwhich the lock knife is mounted areso constructed as to provide for positively limiting upward movem n hi he ihrete g a When the latter is being rotated, It will further be n ted hat the ms are i d p n nt of each other and may be movedalong' the lock lmi shaft so a .to e vu able in patte mech i m f d fe n dth il e th knife is made of steel angle stool; and may be ea o anyv e i'ed dimen iene, the sh p of the knif Permi ting h shi to th a mie Having th s de cribed my inven ion i Will be apparent tha hhn fl ld rhOdifi tion mayb made thereinlby thes skilled ady at ac me t of ,in the art Withou depa ti g f fQm the sp rit scop Qfthe invention and I .do o wen he fbe l mi ed to the de a ls h ein isl sed, but What 1913 135 is:

Ina patternineeh niem for een-ieeemr in pef r f .ey nel g ar ibr ter levereiand. ib etersee ied he eby, the mbina' ie of a leek lm ie he s eeii. :ed teieeidehaf and hav ng-fl et r pair of arms secured thereto and provided with longitudinally extended slots, a lock knife for said'levers, said knife being of ,po tiQ-ll x ding a ong s id arms and a locking portion to engage said levers, said locking portion a being at substantially a right angle to said clamping portion, and

clamping screws extending through said slots to secure said knife tosaid arms in a ju t d pqs i n longitu inally ther of- In a pattern mechanism for looms compr sing a pa r .of cylinder gears, vibrator levers and vibrator gears mounted therein,

th om in ion of a l k if ehait, a

pa r hf arms cur d th r a lo k knife for said levers, means to clamp said knife to said arms, and additional means to force a d kn f a ong a d a ms to a d sai shaft anel p sitiv ly prev ntentwer l mo ement of S dfk-ni e away from said shaf In tes imony wherenf I have hereun n alfixed my ignature.

ANTHONY a GABGQLI'NSKL' angularvorosssection and having a clamping 

